After the death of elderly pigeon racer Barney The Bird, the lads dismantle his pigeon shed as a favour for Barney's wife. They find a bottle of Barney's secret formula, which he fed to his pigeons to make them the fastest birds in Belfast. The lads start a bidding war between two pigeon fanatics, Hong Kong Paddy and Petesy Pigeon. Disaster strikes when the lads accidentally break the bottle of formula but luckily they find the recipe on the bottle label. The boys assemble most of the ingredients but they are missing one vital part of the cocktail - steroids. Shay persuades the boys to let him approach Hoker to supply them. They plan to sell the formula to all the pigeon racers in Belfast thinking that they've made their fortune. However, when Wardrobe threatens Hoker and refuses to pay him the rest of his money, Hoker slips the wrong ingredients into their new batch of formula. Meanwhile, Ta is still locked out by an angry Una and is living with Darragh. It appears that the only way h